“Leo, the Roman pontiff, does not hesitate to charge the Council of Chalcedon (which he admits to be orthodox in doctrines) with ambition and unadvised rashness. Indeed, he does not deny that it is legitimate, but he openly declares that it may have erred. Perhaps someone will think me foolish because I labor to show such errors, since our opponents admit that councils can err in those matters which are not necessary to salvation. But this is no superfluous labor! For even though, being compelled, they confess it by mouth, still, when they thrust upon us the decision of every council, on whatever matter, indiscriminately as an oracle of the Holy Spirit, they require more than they had originally assumed. In doing this, what do they affirm but that councils cannot err; or if they err, it is not lawful for us to discern the truth, or not to assent…